I am using the Adafruit Fona 808 to make a wearable device. One of the main features is GPS but I cannot seem to find a suitable antenna for wearables. My question is: What is a good GPS antenna for a wearable project and should it be active or passive? Thanks
I too thought whats wrong with a normal Antenna, but the answer is the problem is the human body.
There are manufacturers that make "fabric" antennas, but these tend to be Mil-Spec so are going to cost a fortune. (http://www.pharad.com/gps-wearable-antenna.html)
I found this site that explains what the effect of the body is, and seems to make their own antenna. http://www.pharad.com/gps-wearable-antenna.html
I think you might be better off looking for a high gain antenna and the choice of active or passive will probably be based on the interference you get from the body.